The selection of high-quality egg-laying eggs is directly related to the hatching rate and the hatching rate. Therefore, eggs must be selected strictly in accordance with the standard of breeding eggs. The eggs must be fresh, clean and clean. To store in the air circulation, clean, cool, dedicated egg bank, egg store temperature controlled at about 15 °C, storage time to 1 to 3 days as well, turn the eggs 1 to 2 times a day. Eggs are sterilized, pre-heated and re-incubated.
Scientific Control of Incubation Temperature Incubation temperature is the temperature that the egg should reach, not the temperature of the hatchery or incubator. The correct temperature for hatching goslings is: 38.5 to 39°C 10 days before incubating, 37.5 to 38°C 10 days, and 37 to 37.5°C 10 days later, that is, the principle of “pre-high, medium-low, and low-afterâ€. The method of checking the temperature is to use the right hand to bring the hatched egg to the eyelid of the operator. The eggshell is warmer than the eyelid temperature. If the egg temperature is similar to the eyelid temperature, the temperature of the egg is low and the temperature should be raised immediately; Hot, it is necessary to cool down. Cooling methods, one spray, the second is to air the egg, and the third is ventilation, so that the temperature of the egg is not cool until cool. Temperature is the key to the success or failure of hatching. Correctly grasping the temperature and controlling the temperature can promote the normal development and growth of the embryo until the gosling emerges from the shell. Due to the large size of the goose egg, thick eggshell and poor heat dissipation, the egg temperature does not increase easily in the first 5 to 7 days of incubation. Therefore, eggs are soaked in warm water of about 40°C for 4 to 6 minutes before hatching. In the first 10 days after the eggs are hatched, the temperature of the hatching eggs should be quickly raised to 38.5 to 39°C. Eggs begin to be dried 10 days after hatching, and the eggs are dried once every 2 to 3 days. Eggs are regularly fed to reduce the egg temperature to 34.5-35°C. After 20-30 minutes, the egg temperature is returned to normal temperature. After 5 to 7 days after the eggs are hatched, 16 to 18 days and 25 days for each egg respectively, eggs, broken eggs, and dead eggs are picked out when the eggs are laid. When the eggs hatch into 30 to 31 days, the robust goslings gradually break out of the shells, and they are transferred to the insulation room for brooding and heat preservation.
It is the key to the normal development of embryos to properly understand the humidity during hatching of hatching eggs. Humidity is too high, egg weight loss is small, when goslings go out of the shell, villi and eggs are often stuck together; lack of humidity, weight loss eggs, goose down short hair, hatching ahead of time, broken shell difficult. Therefore, the relative humidity during incubation requires: 70%-75% in the first 10 days, 60%-70% in 10 days, 75%-80% in 10 days, and 85% in some cases. If the humidity is too low in the late stage of incubation, the 40°C warm water can be evenly sprayed on the eggshell when the eggs are unloaded, and sprayed once or twice a day until the humidity is normal. After the eggs are hatched, they should pay attention to turning the eggs. Turning the eggs can achieve high hatching rate and hatching rate. The turning angle and level of the eggs turn into 45-degree positions. After a few hours, they turn back to the position of 45 degrees to the opposite side, every 2 Turn eggs 1 to 4 hours. When switching the egg, the upper and lower eggs, the edge eggs and the center egg, the inner layer and the outer layer are exchanged, so that each egg is heated evenly. Turning eggs not only prevents the adhesion between the embryo and the eggshell, egg white and egg yolk, but also keeps the egg temperature uniform and increases embryo activity. In the late post-hatching period, it is necessary to stop turning eggs in order to facilitate embryonic growth and increase hatching rate. Ventilation and ventilation are also required, especially in the later period of embryonic embryos.
Goslings for keeping incubating goslings have small individuals, weak constitutions, sparse villus, poor body temperature regulation capacity, small stomach volume, imperfect digestive function, weak adaptability and resistance to the surrounding environment, and are particularly likely to die in winter and spring. Therefore, brooding must be done well before goslings are listed. The brooding room must be thoroughly cleaned and disinfected before entering the brood. The disinfection can be sprayed with general disinfectant solution or sealed and fumigated with 15 ml of formalin and 7.5 g of potassium permanganate per cubic meter for 24 hours. After the disinfection, open the doors and windows for ventilation until the smell disappears. , before entering the young child care. Feed troughs, drinking fountains and other appliances are washed with 2% caustic soda and then rinsed with 0.2% potassium permanganate solution. Goslings in winter and spring are kept in heat for not less than 4 weeks. At the same time, it is also necessary to prevent cold and frost from invading and keep gossips clean and warm. The suitable temperature for feeding goslings is: the temperature required for 1 to 5 days is 27 to 29°C, the temperature is 6 to 10 days is 24 to 26°C, the temperature is 11 to 15 days is 22 to 23°C, and the time is 16 to 20 days 19 °C.
We are a specialized manufacturers of Sexual Enhancement Materials from China; with advanced R & D and manufacturing in Enhance libido Materials . With high-quality products of Sex Enhance Ingredients , we can be a trust suppliers / factory. As a wholesale of Sexual Performance Imporve Material , we have the perfect after-sales service and technical support. Look forward to your cooperation!
Sildenafil Citrate,Tongkat Ali Extract,Donkey-hide Glue Extract,Sex Enhance Ingredients,Sexual performance Imporve material
Xi'an Quanao Biotech Co., Ltd. , https://www.quanaobiotech.com